JP3011423B2 - Parts suction device - Google Patents

Description

The present invention relates to an apparatus for transporting a component using vacuum suction and mounting it on another component, and can be used in an electronic circuit board assembly process.

(B) Conventional technology As a device for mounting electronic components on a board, turrets of the same number as the number of rotations of the rotary index table are arranged on the periphery of the rotary index table that rotates indexing, and a plurality of types of suction are applied to the turret. Some have collets. When a turret arrives at a component suction position due to the indexing rotation of a rotary index table, this device uses one of the suction collets of the turret.
When the individual sucks the component from the component supply device and then arrives at the component device position, the suction collet mounts the component on the board. An example of such an apparatus can be found in JP-A-59-113700.

(C) Problems to be solved by the invention In recent years, electronic components have changed from extremely small chip-shaped components to large SOPs and Qs.
Various shapes and sizes up to FP are commercially available. For this reason, a device having a plurality of types of suction collets so as to be able to suction a plurality of types of components as in the above-described device has been developed. However, the number of suction collets that can be mounted on the turret is limited in the above-described apparatus, and each collet is general-purpose, and a part within a certain condition range (similar in shape and size) is suctioned. However, the variety of parts recently has reached a point where it is not possible to cover all types with such a device.

An object of the present invention is to provide a component suction device capable of further expanding the range of parts that can be handled, and to meet a user need to mount as many types of components as possible with a single machine.

(D) Means for Solving the Problems According to the present invention, a plurality of turrets are rotatably provided on the periphery of an index table, and a plurality of suction collets are arranged on the turret, and desired suction is performed by rotating the turret. In the case where a collet is selected and used for component suction, the plurality of turrets around the index table include a turret having a different number of suction collets from other turrets.

(E) Function According to the present invention, the number of suction collets attached to the turret can be changed in accordance with the size of the parts to be handled, and if the parts are small, many suction collets can be attached and the range of the parts to be handled can be expanded.

(F) Example An example will be described with reference to the drawings.

FIG. 1 shows a schematic structure of the electronic component mounting apparatus 1. The electronic component mounting device 1 includes a component supply device 2, a board positioning device 3, a board transfer device 4, and a component suction device 5.

The component supply device 2 includes a table 6 that can move on a linear track.
A plurality of component supply cassettes 7 are detachably mounted thereon. The structure of the component supply cassette 7 is such that tapes containing components at a constant pitch are fed out one pitch at a time and components are supplied, and is similar to that described in JP-A-63-17759. The table 6 moves on the track, and positions one selected component supply cassette 7 to a component supply station described later. Selected component supply cassette 7
Supplies the component to the component suction device in the manner described above.

The substrate positioning device 3 mainly includes an XY table 8. Above the XY table 8, a pair of clamp rails 9 for clamping two sides of the substrate are arranged.

The substrate transfer device 4 includes a loader 10 and an unloader 11 arranged on both sides of the substrate positioning device 3. loader
The space between the substrate 10 and the unloader 11 is open to the extent that the substrate positioning device can enter and exit. The loader 10 receives a substrate from a device in a preceding process (not shown) and sends it to the substrate positioning device 3.
The unloader 11 receives the substrate on which the electronic components are mounted from the substrate positioning device 3 and sends it to a device in a post-process (not shown).

The component suction device 5 has ten turrets 13 of the same number as the number of index tables 12 rotatably arranged on the periphery of the index table 12 which rotates in a horizontal plane.

Next, the configuration of the component suction device 5 will be described in detail with reference to FIG. As described above, the index table 12 has ten turrets 13. Each turret 13 has different types of suction collets 15, 16, 17, and 18 projected radially at 90 ° intervals. Suction collet 15, 1
Reference numerals 6 and 17 denote general-purpose types which are in charge of picking up components within a certain range (similar in shape and size). The suction collet 18 is a type dedicated to suctioning only one kind of component having a unique shape and size.
Each type is equipped with a different type. The rotation of the turret 13 is performed by engaging a turret rotation gear of a collet selection device described later with a gear 14 formed on the turret 13. The collet selecting device rotates the turret 13 so that the selected suction collet is directed downward, and the suction collet directed directly downward suctions the component.

Work stations A to J are provided along the track of the turret 13. The work contents and components at each station are as follows.

Station A is a parts supply station in which the selected and positioned parts supply cassette 7 has a tape 20.
And supplies the component 21 to the suction collet.

Station B is a component suction confirmation station in which a suction confirmation sensor 22 is arranged to inspect the component suction state of the suction collet.

Station C is a component positioning station, in which a positioning device 23 is arranged to center and orient a large component sucked by the suction collet. The position setting device 23 has a structure in which pawls 24 for sandwiching components from all sides are supported by a rotary disk 25, and is, for example, as described in Japanese Patent Application Laid-Open No. Sho 62-53299.

The station D is a component positioning station like the station C. Here, a positioning device 26 for small and medium-sized components is arranged.

Station E is a component suction confirmation station, in which a suction confirmation sensor 27 is arranged, and inspects the suction state of the component after position adjustment.

Station F is a component mounting station, where the substrate positioning device 3 on which the substrate 28 is placed comes. substrate
An adhesive is previously applied to a predetermined portion of the component 28, and the suction collet is used to press the component 21 to the portion and adhere the component.

 Station G is a passing station.

Station H is a component 21 determined to be unsuitable for mounting at component suction confirmation stations B and E as it is.
A parts disposal box 29 is disposed at a parts disposal station for abandoning the components.

Station I is a collet selection station, in which a collet selection device 30 is arranged and a turret 13
And a turret rotating gear 31 that meshes with the gear 14 and rotates the gear by a desired angle.

 Station J is a passing station.

Conventionally, in this type of apparatus, the suction collet of each turret is of a general-purpose type, and the combination of types is the same. Therefore, a general-purpose suction collet 15, 16, 17 and a special-purpose suction collet 18 are arranged in each turret 13, and the type of the suction collet 18 is different for each turret 13, so that parts that can be handled by the apparatus are The range has been greatly expanded.

FIG. 3 shows another embodiment, in which the range of parts that can be handled by the apparatus is enlarged by another method. This apparatus changes the number of suction collets of each turret and changes the combination of suction collets of each turret, and other configurations are the same as those of the above-described apparatus.

The turret 50 is provided with suction collets 51 to 56 of a special type for sucking ultra-small electronic components, protruding radially at intervals of 60 °. The turret 58, like the turret 50, has six suction collets. The turret 58 is equipped with a turret 50 in which the suction collet 54 of the suction collets 51 to 56 is replaced with a special-purpose suction collet 57.
The turret 60 protrudes radially at 120-degree intervals from suction collets 61, 62, and 63 of a special type for sucking extra-large electronic components. The turret 64 has three suction collets similarly to the turret 60, and is provided with the suction collet 61 and dedicated suction collets 65 and 66. Turret
Reference numeral 70 denotes a general-purpose suction collet 76, 77, 78 and a special-purpose suction collet 79 projecting at 90 ° intervals. Turrets 71 to 75 are adsorption collets like turret 70
76, 77 and 78 are mounted, and different types of special-purpose suction collets 80 to 84 are mounted.

(G) Effect of the Invention In the present invention, the plurality of turrets on the periphery of the index table include turrets different in the number of suction collets from other turrets. The number of suction collets can be changed, and if there are small parts, many suction collets can be attached, greatly expanding the range of parts that can be handled by a single model.

[Brief description of the drawings]

FIG. 1 is a plan view showing a schematic structure of an electronic component mounting apparatus, FIG.
FIG. 3 is a side elevational view showing a configuration of another component suction device. 12 …… Index table, 13 …… Turret, 15, 1
6, 17, 18 …… Suction collet.

Continuation of the front page (56) References JP-A-1-205500 (JP, A) JP-A-63-301598 (JP, A) JP-A-63-146500 (JP, A) , U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H05K 13/04 B23P 21/00 305

Claims (1)

(57) [Claims] 1. A plurality of turrets are rotatably provided on a peripheral edge of an index table, and a plurality of suction collets are arranged on the turret, and a desired suction collet is selected by rotation of the turret and used for component suction. 3. The component suction apparatus according to claim 1, wherein the plurality of turrets on the periphery of the index table include turrets having a different number of suction collets from other turrets.